Discoloration is a very important part of the weathering process: here you can see how to reproduce it on the Millenium Falcon.
Thanks tofor this video.
There are tons and tons of video-tutorials about scale models, dispersed on the Net. But only a few are truly worth to watch. We select the best and only the best video-tutorials: building, detailing, painting, weathering, dioramas and more.
We just finished to tag all the videos in our archives, and the first results is here: a selection of tutorials about the weathering in scale models: all what you need to know to give to your models the perfect dirty or dusty or rusty look!